Does anyone have much experience with IB's industry classifications? Per IB help desk, their classification is based on GICS. https://www.msci.com/gics But IB seems to have mapped GICS names to their own. Example (for JCI, Johnson Control). GICS sector = Industrials, IB's name = Industrial GICS industry group = Capital Goods, IB's name = (IB does not seem to provide industry group info) GICS industry = Building Products, IB's name = Building Materials GICS sub-industry = Building Products, IB's name = Bldg Prod-Air&Heating In addition, IB's industry classification data quality seems pretty low. AMZN is really under "Consumer Discretionary" GICS sector, but IB shows "Communications". Would love to hear other people's experience working with IB's industry classification data. Thanks. B.B.